A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6240-01-478-5446
NSN 2925-01-184-2413
NSN 5990-00-539-7859
NSN 5835-01-390-4667
NSN 5920-01-176-4854
NSN 5945-01-090-9733
NSN 6320-01-335-8336
NSN 5855-01-456-8667
NSN 5965-01-389-1068
NSN 6105-00-053-8638
NSN 5935-00-957-9208
NSN 5975-01-198-6043